Australian chef de mission Nick Green blamed social media for the betting plunge that saw three-time WNBA Most Valuable Player Lauren Jackson's odds go from 30/1 to 1/2 to be the flag-bearer for the Aussies at the upcoming London Games.

Green believes Twitter followers used a process of elimination by asking potential flag-bearers specifically whether or not they had been bestowed the honor.

''It's just the nature of social media and for me it doesn't in any way disrupt the night or occasion. It's just something that happened on the side," Green said in defense of an alleged information leak.

Sportsbet.com.au told the Sydney Daily Telegraph it had several new accounts looking to specifically bet this Olympic prop, leading analyst to believe the flood of action and subsequent shift in odds were based on inside information.  

"It had been quiet for most of the day then every single bet they were taking was on Jackson," Sportsbet spokesman Haydn Lane told reporters.

"When it gets to a point where the odds don’t matter and people are trying to get on for as much as they can, that basically tells us the cat’s out of the bag."

International Olympic Committee (IOC) president Jacques Rogge said he was uneasy about the Australian betting revelations.

"I would say that for the spirit of the rules it's not good, but the letter of the law has not been breached," Rogge said Friday. "It has nothing to do with the sporting result or manipulation of the competition, but I feel an unease in this respect."

Jackson is the first Australian female flag-bearer in 20 years and the second basketball player to win the honor.